Davide DB

Wow I have to investigate this solution but I guess it's for the bayonet attachment. Nothing in your configuration I guess... Except I'm having a lot of problems with sediments sticking on the glass. We tried with dish soap and with Rainox with no results. I'm leaving the lens in a river ripping current for 5 hours runtime... Suggestions are welcome!

Maybe it was for the Inon? This AOI is a small WWL-1 and it needs the water between it and the Gopro lens. I'll try it later but it seems to me that everything is blurry in the air. I'm sure it all depends on my particular (to say the least) use case and anyone using a gopro underwater should definitely use it. At 200 euros it is a bargain! As soon as I have time I will explain more about how I used it, the problems I had and a couple of clips shot in the river.

Experiments continue with the AOI Lens and Digipower battery for long shooting sessions in the river. A camera trap, basically. The result is a bitter-sweet mixture 🙂 On the one hand, the quality of shooting with this lens is outstanding compared to those with the flat lens of the standard Gopro. On the other, the modifications I had to make to mount it in my particular conditions of use meant that almost all of the footage had to be discarded due to various flaws: spots and fogging appears ata some point. We have various theories as to why these flaws occur, and we also made some modifications but the risk of having an unusable single-event shot made us reluctantly decide not to use it for this purpose anymore. We will use it in shorter 40-minute sessions with its standard bayonet mount. Hoping that everything goes as expected.

I see that Paul Humann is mentioned several times in our list of books for identifying sea creatures. Sadly, Paul Humann left us a few days ago. R.I.P. https://www.reef.org/remembering-paul-humann

I see that there are several lights on the market that offer strobe function. I am skeptical about the real usefulness of this solution but I leave that to the photographers. However, it is already difficult to mix light temperature from two different strobes let alone a strobe and a light. For video, working with a single light is difficult but you should tell us whether your photographic subjects are macro or wide and whether you shoot in temperate waters or shallow in clear tropical waters. 8000 real lumens may be low and if you are doing macro, a wide light (120°) illuminates practically nothing.

Link to this thread added to our working and tested project list

I updated the first post with the latest links from this thread. If you want your project added just post a public valid link here. Thank you all, this is becoming a terrific useful list!

IIRC @RichN has fallen into compulsive shoppig and can give you feedback on how it works 🙂 On that thread I remember other members were using their smartphone.

We should hide this thread 😉

Wow! Looking at my footage of the 11 with AOI lens and the other 11 without it is like comparing a gopro 3 with a 11.

Nikolausz is essentially right: li linear FOV is obtained by cropping the sensor is applying a de-fishing algorithm in camera. This is one of the most common questions on forums, articles and videos. There is a clarification to be made, though. Cropping does not necessarily mean deteriorating quality. In earlier models the sensor was practically 3840 horizontal pixels and cropping involved an actual decrease in resolution and subsequent upscaling to 4K. Since the gopro 11, the sensor is 5.3K and even has an 8:7 or nearly square ratio. This means that 4K can be achieved by cropping but maintaining a 1:1 ratio of image pixels to sensor pixels. In all the articles I've read everyone is dancing around it but no one has the certainty and Gopro has never been clear and definitive. Sure, the best theoretical quality is shooting at 5.3K 8:7 wide without hipersmooth and then cropping and de-fishing in post... But why so much hate? Who has the will and time to do this hard work in post? Besides, are we sure we would appreciate the difference? I mean reading all the bombastic articles about how to get the most out of these cameras reminds me of when I was 14 years old and we used to spend our days putting mufflers and other modifications on our mopeds to get an extra sprint 🙂

That's what I teied now in the river but I'm not sure if it's exactly like that. Using the wide and cropping in post, the images still have a slightly fisheye look that is not there in the linear. P.S. The AOI lens is stunning . Quality in water from night to day. At that price it should be the default kit for anyone using it underwater.

99% per cent of underwater monitors are simply Chinese monitors (from the controls and fw you can see that many are Feelworld monitors), Two parameters are crucial: - brightness - weight in water. 4/500 nits may be low for tropical seas. You would need at least 1000 nits. A fine, streamlined monitor is not necessarily better. Maybe it weighs a heck of a lot and thetroublea nightmare to get the whole kit with a decent weight and trim. This is very important for video makers. I'm seeing fake reviews on YouTube with monitors mounted in absurd ways. Another parameter to keep in mind is the position of the connectors on the monitor and your housing bulkheads. There may be cases where you only have one option to mount it due to bad cables routing or connectors banging.

Welcome aboard EFLT! Out of curiosity, what's the meaning of PWN? 🙂

Hi Mark, plain jpg or png images are best suited.

Do you have a Kiss rebreather?

Hi Gibby, Welcome aboard!

Link added

If you point me directly to some project I'm happy to link in our list pinned above. Ciao

This is what several rumors sites are writing.

Welcome Andrei, Video section has been missing you!

Happy to have you with us Kay!

IMHO linear is the way to go with flat port/lens.

1 million dollar question 🙂 This is the crux of the matter and I am sure that each member has his or her own view. Now everyone is attracted to the A7R5 and A1 but I'm sure an A7R2 is a great camera that can give anyone satisfaction. I usually start at 50% of the price I paid for it and then adjust according to the need/want to clear the shelf at home 🙂 how much it is in demand on the market and of course its state of preservation. I often buy things used. I'm not obsessed with having new items. I also find it ethical. So when I sell I also put myself in the buyer's shoes. Many times the seller does not realise that if the savings are small, people prefer to buy the item new.